frictional force
磨擦力
2026-03-21 08:21 浏览次数 13
磨擦力
We have friction in this direction, because clearly the ladder wants to slide like this, so the frictional force will try to prevent that, will be in this direction.
这个方向有摩擦,因为很明显,梯子会这么滑下,而摩擦力,会阻止它这么做,它会在这个方向。
So this frictional force is really having a rough time starting off in this direction, slowly becoming less becoming zero, changing direction, reaching the maximum and finally losing the battle.
可以看到摩擦力一直在挣扎,开始是这个方向,慢慢减少,减为零,改变方向,达到最大值,最终不敌。
This might be enough to counteract the frictional force that holds the slabs of rock in place, making it easier for faults to slip.
这足以抵消保持巖石不动产生的摩擦力,使得巖层轻易移动。
The frictional force between a particle and fluid counterbalances the weight of the particle.
颗粒与流体之间的摩擦力与其重量相平衡。
It is moving, so sure, it「s going to be accelerated so the frictional force is in this direction, has this value.
物体运动,并向上加速度,因为摩擦力方向斜上,值为这个。
The formulas of slip frictional force and torque of bearing clutch, a new foreign product, were deduced under the condition of no lubrication based on elastic fluid deformation theory.
利用弹性流体变形理论,推导出了国外新产品轴承离合器在无润滑时滑动摩擦力和摩擦力矩公式;
If that」s the case, then I know that the frictional force will be in this direction and it will have reached the maximum value with the static friction coefficient.
这样的话,我们知道,摩擦力将会向下,直到达到,最大静态摩擦为止。
The deformation and contact frictional force of elastomer pressure shear break are studied in proportion loading .
对比例加载时弹性体压剪裂缝的变形及接触摩擦力问题进行了研究。
According to characters of geometrical shape and frictional force of steel ball, the practical mechanism with special function is designed by using steel ball composed of special construction.
利用钢球的几何形状及在滚动中的低摩擦特性,将其与一些经专门设计的构件组合,可以构成功能独特的实用机构。
An iterative algorithm is used to work out the vertical properties, including vertical stiffness, contact length and frictional force distribution in longitudinal direction.
采用迭代算法计算了静态垂直特性,即垂直刚度、印迹长度及摩擦力在纵向的分布。
The frictional force remains constant, dependent on the friction, the kinetic friction coefficient, is always the same...
摩擦力不守恒,它取决于摩擦力,动能摩擦系数,一直是相同的。
This method could be used for frictional force analysis in short to medium radius horizontal Wells, and as a reference to field drilling practice.
该方法可适用中短半径水平井的摩阻力分析,供实际鉆井作业参考。
The method of increasing frictional coefficient is properly used to predict the frictional force of designed path of later horizontal wells.
準确地估价摩阻力对水平井鉆井与完井的设计和施工都有重要的指导作用。
So I know what the frictional force is given by this result.
由此我得到,摩擦力的大小。
How does the frictional force do that?
摩擦力是怎么做的?
The value of frictional force of soil to pile body and resistance to pile toe has a close relation with the penetration depth and relative rigidity of soil layer at pile body and pile toe.
支承桩的桩身摩擦力和桩尖阻力的大小与入土深度及桩身、桩尖处土层的相对刚度密切相关。
Now, I don't want this ladder to slide, so now I have a requirement that the frictional force must be less or equal to the maximum frictional force possible.
我不希望梯子滑下来,所以我要求,摩擦力必须小于,或者等于,摩擦力的可能最大值。
And so that means that the frictional force is a maximum value possible, N which is the static friction coefficient times N, and therefore that is mu of s mgcos And when will that happen?
这意味着,摩擦力在最大值,静摩擦力因数乘以,等于mus乘以,θ,times,mg,times,the,cosine,of,theta。,什么时候会发生?
So now the situation is only safe as long as the frictional force is smaller or equal to the maximum value possible.
所以只有当,摩擦力,小于或等于最大值的,时候才不会倒。
If, however, this object wants to go in this direction - which I do not know-- then the frictional force has to be put in this direction.
不过如果物体有下滑的趋势,我不知道-,那么摩擦力,就会向上。
And as I increase the tilt this frictional force will get larger and larger and larger and then there comes a time that the object will start to slide.
随着倾斜度的变大,摩擦力,会越来越大,加到某一程度,物体会开始下滑。